After fit reversing camera on E250 estate

[craig1]

Hello I'm looking for advice on a fitted reverse camera on a new 15 plate E250 estate. I have been quoted £600 inc fitting which I thought was steep. I have been very disappointed with the audio reverse which it has, visibly giving off amber lighting and only sounding when your 8 inches from an object. Any advise please. Another solution maybe an upgraded audio bleeper? I need this to hitch up my caravan.

 

[Giantvanman]

The search function will yield several results, including this current thread http://www.mbclub.co.uk/forums/electronics/182193-reversing-camera-fitting.html

 

[guydewdney]

Fresnel lens?